AS Eesti Liinirongid, operating as Elron, is a government-owned passenger train operator in Estonia.
The company was separated from Eesti Raudtee in 1998. Before 2014, the company operated exclusively the electrified commuter rail system in Harjumaa, and was known until October 2013 as Elektriraudtee, i.e. "the Electrical Railway". On January 1, 2014 Elron took over all domestic passenger train services in Estonia from Edelaraudtee.
Tallinn commuter rail network is electrified, and it extends east and west from Balti jaam, the total length of the network being 132 km. The eastbound line goes to Aegviidu. The westbound line goes to the town of Keila, where it divides into two branches continuing towards the cargo-harbour city of Paldiski and inland to Riisipere. The Paldiski branch splits at Klooga, with a short spur going to the beach at Klooga-rand.
In 2007 Elektriraudtee opened its first express service from Tallinn to Keila, which stops only at the busiest stations. In 2008 the express service from Tallinn to Aegviidu was opened.
Work to upgrade track and stations has been ongoing since 2010.